Stick up for what you believe.

你相信什么，就要捍卫它。

Don't worry—I'll stick up for you.

别担心—有我呢。

She taught her children to stick up for themselves at school.

她教育子女在学校要勇于自卫。

You would think my own father would stick up for me once in a while.

你会认为我的亲生父亲偶尔也会支持我一下。

Of course you stick up for him.

当然，你站在他那边，很好。